/*
 *   Copyright 1999-2016 Asiainfo Technologies(China),Inc.
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 *
 */

package com.asiainfo.redis.web;

import org.apache.shiro.authz.AuthorizationException;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerExceptionResolver;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * @version v 1.0 on 2016/4/19 15:42
 * @auther william.xu
 */
@Component
public class MyHandlerExceptionResolver implements HandlerExceptionResolver {
    @Override
    public ModelAndView resolveException(HttpServletRequest request, HttpServletResponse response, Object handler,
                                         Exception ex) {
        ModelAndView result = null;
        String requestType = request.getHeader("X-Requested-With");
        if (ex instanceof AuthorizationException) {
            response.setStatus(HttpStatus.FORBIDDEN.value());//无权限异常  主要用于ajax请求返回
            response.addHeader("Error-Json", "{code:403,msg:'nopermission',script:''}");
            response.setContentType("text/html;charset=utf-8");
            if ("XMLHttpRequest".equals(requestType)) {
                result = new ModelAndView();
            }
            result = new ModelAndView("redirect:/html/403.html");
        }
        return result;
    }
}
